- Jan 10, 2020
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David (Dingchen) Zhang authored
[why] We need to minimally initialize the remote aux channel, e.g. the crc work struct of remote aux to dump the sink's DPRX CRCs in MST setup. [how] Add helper that only initializes the crc work struct of the remote aux, hooke crc work queue to 'drm_dp_aux_crc_work'. Then call this helper in DP MST port initialization. This, plus David Francis' patch [1], fix the issue of MST remote aux DPCD CRCs read. [1] https://patchwork.kernel.org/patch/11217941/ Cc: Leo Li <sunpeng.li@amd.com> Cc: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by:
David (Dingchen) Zhang <dingchen.zhang@amd.com> Reviewed-by:
Harry Wentland <harry.wentland@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>
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Mikita Lipski authored
Whenever a connector on an MST network is attached, detached, or undergoes a modeset, the DSC configs for each stream on that topology will be recalculated. This can change their required bandwidth, requiring a full reprogramming, as though a modeset was performed, even if that stream did not change timing. Therefore, whenever a crtc has drm_atomic_crtc_needs_modeset, for each crtc that shares a MST topology with that stream and supports DSC, add that crtc (and all affected connectors and planes) to the atomic state and set mode_changed on its state v2: Do this check only on Navi and before adding connectors and planes on modesetting crtcs v3: Call the drm_dp_mst_add_affected_dsc_crtcs() to update all affected CRTCs Reviewed-by:
Lyude Paul <lyude@redhat.com> Signed-off-by:
David Francis <David.Francis@amd.com> Signed-off-by:
Mikita Lipski <mikita.lipski@amd.com> Signed-off-by:
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Mikita Lipski authored
[why] Whenever a connector on an MST network is changed or undergoes a modeset, the DSC configs for each stream on that topology will be recalculated. This can change their required bandwidth, requiring a full reprogramming, as though a modeset was performed, even if that stream did not change timing. [how] Adding helper to trigger modesets on MST DSC connectors by setting mode_changed flag on CRTCs in the same topology as affected connector v2: use drm_dp_mst_dsc_aux_for_port function to verify if the port is DSC capable v3: - added _must_check attribute - removed topology manager check - fix typos and indentations Reviewed-by: -
Mikita Lipski authored
[why] Since for DSC MST connector's PBN is claculated differently due to compression, we have to recalculate both PBN and VCPI slots for that connector. [how] The function iterates through all the active streams to find, which have DSC enabled, then recalculates PBN for it and calls drm_dp_helper_update_vcpi_slots_for_dsc to update connector's VCPI slots. v2: - use drm_dp_mst_atomic_enable_dsc per port to enable/disable DSC v3: - Iterate through connector states from the state passed - On each connector state get stream from dc_state, instead CRTC state Reviewed-by: -
Mikita Lipski authored
If driver fails to update update VCPI allocation during compute_mst_dsc_configs_for_state - fail the function by return early. Signed-off-by:
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David Francis authored
If there is limited link bandwidth on a MST network, it must be divided fairly between the streams on that network Implement an algorithm to determine the correct DSC config for each stream The algorithm: This [ ] ( ) represents the range of bandwidths possible for a given stream. The [] area represents the range of DSC configs, and the () represents no DSC. The bandwidth used increases from left to right. First, try disabling DSC on all streams [ ] (|) [ ] (|) Check this against the bandwidth limits of the link and each branch (including each endpoint). If it passes, the job is done Second, try maximum DSC compression on all streams that support DSC [| ] ( ) [| ] ( ) If this does not pass, then enabling this combination of streams is impossible Otherwise, divide the remaining bandwidth evenly amongst the streams [ | ] ( ) [ | ] ( ) If one or more of the streams reach minimum compression, evenly divide the reamining bandwidth amongst the remaining streams [ |] ( ) [ |] ( ) [ | ] ( ) [ | ] ( ) If all streams can reach minimum compression, disable compression greedily [ |] ( ) [ |] ( ) [ ] (|) Perform this algorithm on each full update, on each MST link with at least one DSC stream on it After the configs are computed, call dcn20_add_dsc_to_stream_resource on each stream with DSC enabled. It is only after all streams are created that we can know which of them will need DSC. Do all of this at the end of amdgpu atomic check. If it fails, fail check; This combination of timings cannot be supported. v2: Use drm_dp_mst_atomic_check to validate bw for certain dsc configurations v3: Use dc_dsc_policy structure to get min and max bpp rate for DSC configuration Acked-by:Wenjing Liu <Wenjing.Liu@amd.com> Signed-off-by:
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Mikita Lipski authored
[why] Need to calculate VCPI slots differently for DSC to take in account current link rate, link count and FEC. [how] Add helper to get pbn_div from dc_link Acked-by:
Leo Li <sunpeng.li@amd.com> Signed-off-by:
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Mikita Lipski authored
[why] drm_dp_mst_atomic_check_topology_state() should be renamed to reflect more specific type of check. Since it is verifying payload allocation limit it should be renamed into drm_dp_mst_atomic_check_vcpi_alloc_limit() Reviewed-by:
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Mikita Lipski authored
[why] Adding PBN attribute to drm_dp_vcpi_allocation structure to keep track of how much bandwidth each Port requires. Adding drm_dp_mst_atomic_check_bw_limit to verify that state's bandwidth needs doesn't exceed available bandwidth. The funtion is called in drm_dp_mst_atomic_check after drm_dp_mst_atomic_check_topology_state to fully verify that the proposed topology is supported. v2: Fixing some typos and indenting v3: Return correct error enums if no bw space available Reviewed-by:
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Mikita Lipski authored
Adding a helper function to be called by drivers outside of DRM to enable DSC on the MST ports. Function is called to recalculate VCPI allocation if DSC is enabled and raise the DSC flag to enable. In case of disabling DSC the flag is set to false and recalculation of VCPI slots is expected to be done in encoder's atomic_check. v2: squash separate functions into one and call it per port v3: Fix comment typos Reviewed-by:
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Mikita Lipski authored
[why] For DSC case we cannot use topology manager's PBN divider variable. The default divider does not take FEC into account. Therefore the driver has to calculate its own divider based on the link rate and lane count its handling, as it is hw specific. [how] Pass pbn_div as an argument, which is used if its more than zero, otherwise default topology manager's pbn_div will be used. Reviewed-by:
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David Francis authored
Rework the dm_helpers_write_dsc_enable callback to handle the MST case. Use the cached dsc_aux field. Reviewed-by:
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David Francis authored
During MST mode enumeration, if a new dc_sink is created, populate it with dsc caps as appropriate. Use drm_dp_mst_dsc_aux_for_port to get the raw caps, then parse them onto dc_sink with dc_dsc_parse_dsc_dpcd. Reviewed-by:
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David Francis authored
For DSC MST, sometimes monitors would break out in full-screen static. The issue traced back to the PPS generation code, where these variables were being used uninitialized and were picking up garbage. memset to 0 to avoid this Reviewed-by:
Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by:
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Mikita Lipski authored
Synaptics DP1.4 hubs (BRANCH_ID 0x90CC24) do not support virtual DPCD registers, but do support DSC. The DSC caps can be read from the physical aux, like in SST DSC. These hubs have many different DEVICE_IDs. Add a new quirk to detect this case. v2: Fix error when checking return of drm_dp_read_desc Reviewed-by:
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David Francis authored
Add drm_dp_mst_dsc_aux_for_port. To enable DSC, the DSC_ENABLED register might have to be written on the leaf port's DPCD, its parent's DPCD, or the MST manager's DPCD. This function finds the correct aux for the job. As part of this, add drm_dp_mst_is_virtual_dpcd. Virtual DPCD is a DP feature new in DP v1.4, which exposes certain DPCD registers on virtual ports. v2: Remember to unlock mutex on all paths v3: Refactor to match coding style and increase brevity v4: - Check DSC capable MST sink connected directly to the device. - Check branch's port_parent to be set Cc: Lyude Paul <lyude@redhat.com> Reviewed-by: -
David Francis authored
This field on drm_dp_mst_branch was never filled It is initialized to zero when the port is kzallocced. When a port is added to the list, increment num_ports, and when a port is removed from the list, decrement num_ports. v2: remember to decrement on port removal v3: don't explicitly init to 0 v4: move decrement of num_ports to unlink_port function Reviewed-by:
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David Francis authored
Instead of having drm_dp_dpcd_read/write and drm_dp_mst_dpcd_read/write as entry points into the aux code, have drm_dp_dpcd_read/write handle both. This means that DRM drivers can make MST DPCD read/writes. v2: Fix spacing v3: Dump dpcd access on MST read/writes v4: Fix calling wrong function on DPCD write v5: delete deprecated include of drmP.h Reviewed-by:
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David Francis authored
As of DP1.4, ENUM_PATH_RESOURCES returns a bit indicating if FEC can be supported up to that point in the MST network. The bit is the first byte of the ENUM_PATH_RESOURCES ack reply, bottom-most bit (refer to section 2.11.9.4 of DP standard, v1.4) That value is needed for FEC and DSC support Store it on drm_dp_mst_port Reviewed-by:
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David Francis authored
With DSC, bpp can be fractional in multiples of 1/16. Change drm_dp_calc_pbn_mode to reflect this, adding a new parameter bool dsc. When this parameter is true, treat the bpp parameter as having units not of bits per pixel, but 1/16 of a bit per pixel v2: Don't add separate function for this v3: In the equation divide bpp by 16 as it is expected not to leave any remainder v4: Added DSC test parameters for selftest Reviewed-by:
Manasi Navare <manasi.d.navare@intel.com> Reviewed-by:
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Felix Kuehling authored
Use filep->private_data to store a pointer to the kfd_process data structure. Take an extra reference for that, which gets released in the kfd_release callback. Check that the process calling kfd_ioctl is the same that opened the file descriptor. Return -EBADF if it's not, so that this error can be distinguished in user mode. Signed-off-by:
Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by:
Philip Yang <Philip.Yang@amd.com> Signed-off-by:
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- Jan 08, 2020
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Thomas Anderson authored
For high-res (8K) or HFR (4K120) displays, using uncompressed pixel formats like YCbCr444 would exceed the bandwidth of HDMI 2.0, so the "interesting" modes would be disabled, leaving only low-res or low framerate modes. This change lowers the pixel encoding to 4:2:2 or 4:2:0 if the max TMDS clock is exceeded. Verified that 8K30 and 4K120 are now available and working with a Samsung Q900R over an HDMI 2.0b link from a Radeon 5700. Reviewed-by:
Thomas Anderson <thomasanderson@google.com> Signed-off-by:
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Xiaodong Yan authored
[Why] Some combined docks will always trigger CP_IRQ but there's nothing the driver needs to take care of, but the CP_IRQ breaks the original hdcp state and triggers the driver to restart the authentication. [How] Add the event type check before restart the authentication or resend the stream management Signed-off-by:
Xiaodong Yan <Xiaodong.Yan@amd.com> Reviewed-by:
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Michael Strauss authored
[WHY] Some monitors trigger HDCP2.x timeout after reinitializing (e.g. toggling HDR) by taking longer than expected to return h' (h prime) Previously the 200ms watchdog timer retry count would hit MAX_NUM_OF_ATTEMPTS (4), causing fallback to HDCP1.x [HOW] Adding a 1s delay after an h' watchdog timeout provides enough time for affected monitors to return h' in time without hitting MAX_NUM_OF_ATTEMPTS Signed-off-by:
Michael Strauss <michael.strauss@amd.com> Reviewed-by:
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Jing Zhou authored
[why] Most DP/HDMI monitors need more time to response rx_validation request. [how] Add generic 1000ms delay. Signed-off-by:
Jing Zhou <Jing.Zhou@amd.com> Reviewed-by:
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Bhawanpreet Lakha authored
[Why] We are returning incorrect error code for validate h prime [How] Return the right Error code Signed-off-by:
Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by:
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Bhawanpreet Lakha authored
[Why] PSP needs session ID to destroy a session, In the case where we fail create session we don't have a session ID [How] Set the session ID before returning Signed-off-by:
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Bhawanpreet Lakha authored
We are returning SUCCESS when hdcp_status != Success. Fix it. Signed-off-by:
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Wambui Karuga authored
list_for_each() can be replaced by the more concise list_for_each_entry() here for iteration over the lists. This change was reported by coccinelle. Signed-off-by:
Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by:
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Wambui Karuga authored
As single statement conditionals do not need to be wrapped around braces, the unnecessary braces can be removed. Signed-off-by:
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Wambui Karuga authored
Remove unnecessary variable comparisions to true/false in if statements and check the value of the variable directly. Signed-off-by:
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Alex Deucher authored
This reverts commit 51bfac71. This causes stability issues on some raven boards. Revert for now until a proper fix is completed. Bug: https://gitlab.freedesktop.org/drm/amd/issues/934 Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206017 Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
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Alex Deucher authored
Put it on one line to avoid whitespace issues when printing in the log. Reviewed-by:
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Alex Deucher authored
Rather than open coding it. This also changes the free masks to better reflect the usage by other components. Acked-by:
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Alex Deucher authored
So it can be shared with newer GMC versions. Reviewed-by:
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John Clements authored
defined macros for repetitive for loops Reviewed-by:
Guchun Chen <guchun.chen@amd.com> Signed-off-by:
John Clements <john.clements@amd.com> Signed-off-by:
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John Clements authored
switch CE counter register access' to use SMN disable UMC indexing mode Reviewed-by:
Tao Zhou <tao.zhou1@amd.com> Signed-off-by:
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Evan Quan authored
Provided an unified entry point. And fixed the confusing that the API usage is conflict with what the naming implies. Signed-off-by:
Evan Quan <evan.quan@amd.com> Reviewed-by:
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Evan Quan authored
Guard the content consistence between the view of GPU and CPU during the table transferring. Signed-off-by:
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Evan Quan authored
With "dpm=0", there will be no DPM enabled. The code needs to be refined to support this. Signed-off-by:
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